The American Petroleum Institute is inescapable here, its name attached to briefings and concerts while its campaign logo adorns free sunglasses and sunscreen. But clean energy is not invisible to Republicans during their quadrennial celebration.

Even as GOP presidential nominee Mitt Romney emphasizes the oil, gas and coal elements of what his party likes to call an “all of the above” strategy, businesses that traffic in renewables and efficiency are honing their energy pitch to conservatives. Their language tends to sidestep climate change and the environment while emphasizing profits and growth — talk tailor-made to persuade a potential Romney administration that fossil fuels are not the only game in town.